Canon, 74, a retired stock broker, is completing his second four-year term as commissioner and his second two-year term as mayor.

Waterman, 77, a semi-retired lawyer, also is completing his second four-year term while Cohen, a retired Marine colonel who will not reveal his age, is completing his first two-year term.

Other filings through Monday:

(BU) Coconut Creek -- Ted Thomas, the vice mayor, Walter Arnold, a councilman, and Bob Shelley, a private citizen, have filed and, so far, are unopposed in the three districts up for election. Mayor Lou Schneider has announced he will not seek re-election.

(BU) Davie -- Vice Mayor Betty Roberts has filed for re-election on the Town Council. Running for the other open spot, the at-large seat, is Frank Cannata.

(BU) Dania -- Incumbent James Adams and challenger Howard Hirsch, who sat on the City Commission in the 1970s, have filed for the city`s at-large election in which the top three finishers are elected.

(BU) Hillsboro Beach -- Andre LaBonte, 38, an ocean engineer and businessman, filed Monday for a second two-year term on the City Commission.

(BU) Lauderdale Lakes -- The three incumbents filed for another two-year term this week: Morris ``Mac`` Klein, for his fifth term; Harry Rosenkrantz, for his second two-term; Lou Tenner, for his fourth two-year term.

(BU) Lighthouse Point -- Filing this week for re-election to two-year terms were Mayor Albert E. Fletcher and commissioners Richard Ford and William F. Sullivan. Also, a newcomer, lawyer Fred C. Bamman, filed for the seat held by Thomas Doolittle, who is not running.

(BU) Margate -- Filing for the at-large election this week was incumbent Mitch Anton as well as challengers Robert P. Franklin and Joseph Varsallone, an insurance agent.

Sobol has filed to run for re-election to a four-year term. So have incumbent Commissioners Vicki Coceano and Tom DeSantis.

(BU) North Lauderdale -- Gary Frankel is the only candidate who has filed. Two seats are open.

(BU) Oakland Park -- Ken Powell has filed for re-election to the City Council, while four challengers have signed up for two other seats that are open.

Mervin Span and Caryl Stevens filed to run for the seat now held by Charles Howard. James Loss and Dale Hoover filed for the seat now occupied by Catherine Thompson.

(BU) Parkland -- Robert A. White, alawyer and former city commissioner, filed Monday for the District 5 seat now held by Dan White.

(BU) Plantation -- Andrea Simon, 40, an interior designer, filed Monday for Seat 3, held by Ralph D. Merritt III. Merritt is running for re-election and also has been challenged by Mike Shayne and Barry Ahringer.

Bob Shortt, 42, owner of Shortt`s Office Center, an office supply store in Plantation, filed for Seat 5 as did Marsha Levy, 41, a teacher of children with special learning disabilities. Also challenging for Seat 5 are Will Connelly and Marty Dishowitz. Incumbent Neil La Hurd has not filed.

(BU) Sunrise -- The Sunrise election features challenges to at least two incumbents. Russell Posner has filed to run against Councilman Bill Colon. Dan Pearl, a former council president, is seeking the seat held by Nancy Rankine, who says she will run but has not yet filed. Councilman Larry Hoffman has filed for re-election, but is so far unopposed.

(BU) Tamarac -- Allan C. Bernstein, appointed to fill a City Council vacancy in October, filed for re-election to a two-year term.

Arthur H. Gottesman and Shirley Blumfield are running for another two-year seat on the City Council.

The city also is holding elections to its Charter Board, and incumbent Melanie K. Reynolds, filed for re-election. Reynolds, 79, served on the Charter Board 1978-80 and was elected again in 1983.